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2003 National Healthcare Quality Report

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Percent of AMI patients administered aspirin within 24 hours of admission.

Measure Source

Centers for Medicare and Medicaid Services, Health Care Quality Improvement Program (HCQIP) Quality Indicator.


1.34a Percent of AMI patients administered aspirin within 24 hours of admission, United States, 2000 – 2001.

1.34b Percent of AMI patients administered aspirin within 24 hours of admission, by state, 2000 – 2001.

Data Source

Centers for Medicare and Medicaid Services, Medicare Quality Improvement Organization Program. Data are from a systematic random sample of up to 800 inpatient records per state.


Medicare discharges with a principal diagnosis of acute myocardial infarction (AMI, ICD-9 codes 410.00, 410.01, 410.10, 410.11, 410.20, 410.21, 410.30, 410.31, 410.40, 410.41, 410.50 410.51, 410.60, 410.61, 410.70, 410.71, 410.80, 410.81, 410.90, 410.91).


Subset of AMI denominator patients who received aspirin within 24 hours before or after hospital arrival.


Excludes patients transferred to another acute care hospital on day of arrival, patients received in transfer from another hospital or another emergency department, patients discharged on day of arrival, and patients who expired on day of arrival.

Excludes patients with one or more of the following aspirin contraindications documented in the medical record: bleeding on admission, aspirin allergy, history of internal bleeding or bleeding/coagulation disorder, chronic liver disease, platelet count less than 100 x 109/L on admission, anemia, treatment with warfarin prior to admission, history of peptic ulcer disease, admission serum creatinine greater than 3 mg/dL.

This measure is also a Joint Commission on Accreditation of Healthcare Organizations core measure.

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